#12C Power Amps FOR PRINT (746-769) - B&H Photo … · · 2007-01-09monitor amp, paging systems, cinema systems, boardroom audio ... Series takes that philosophy and multi-

Section12CPower Amps

Alesis ..................................................748

Ashly ...........................................749-751

Crown.........................................752-757

EAW ............................................758-759

Mackie ...............................................760

Phonic ................................................761

QSC.............................................762-763

Rane ...................................................764

Rolls....................................................765

Samson......................................766-767

Tapco by Mackie ..............................761

TOA.....................................................768

Yamaha ..............................................769

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P O W E R A M P L I F I E R S

A L E S I S

RA SERIES

748

150/300/500 Watt Studio Reference AmplifiersWith their rugged construction, striking good looks,

and a long list of features, the RA series will quickly

find a home in project and commercial recording

studios, broadcast and post-production control

rooms around the world. Whether used for studio

reference monitoring, live sound reinforcement, or

instrument amplification, the RA-Series will provide

clean, quiet, reliable power with the high quality

found in all Alesis products.

They are designed to provide more power and better

performance at a lower overall cost per watt than

any other competing amp. As a result, they can better

match the power needs of virtually any passive

speaker or studio monitor, offering a significantly

better fit for an exceptionally wide range of budgets,

applications and customers.

They also provide a crisp, clean signal for outstanding performance and extended speaker life.

Designed for studio use, each RA series amp incorporates advanced convection cooling for heat dissipation. The result is

long, stable operation unaffected by heat-related complications and without the added distraction and annoyance of

fan cooling. Also helps eliminate the danger of losing hard-to-hear details due to noisy amp performance.

◆ DC coupled, fully complementary discreteamplifier topology.

◆ Actively biased, dual differential inputs.

◆ Wide bandwidth, low distortion design.

◆ Fully protected from all fault conditions.

◆ Front panel level controls.

◆ LED output level metering(RA300 and 500 only).

◆ Overload/fault indicators.

◆ Bridged mono operation.

◆ Relay-controlled turn on/off.

◆ Silent convection-cooled design.

◆ Heavy-duty steel chassis.

◆ RCA inputs (-10dB unbalanced).

◆ 1/4”TRS inputs (+4dB balanced).

◆ XLR input connectors (RA 300, RA 500).

◆ Heavy-duty, dual binding post outputconnectors.

F E AT U R E S R A S E R I E S S P E C I F I C AT I O N S

RA150 RA300 RA500

Height 2 RU 2RU 3U

Rated Output, 75w RMS 150w RMS 250w RMS4Ω per channel per channel per channel

Rated Output, 45w RMS 90w RMS 150 RMS8Ω per channel per channel per channel

Rated Output, 150w RMS 300w RMS 500 RMS8Ω Bridged Mode Bridged Mode Bridged Mode

S/N Ratio >105dB >105dB >105dB

Frequency 10Hz - 70kHz 10Hz - 70kHz 10Hz - 70kHzResponse +0, -3dB +0, -3dB +0, -3dB

Distortion < 0.02% @ 4Ω, < 0.02% @ 4Ω, < 0.02% @ 4Ω,20Hz - 20kHz 20Hz - 20kHz 20Hz - 20kHz

Input +4dB +4dB +4dBSensitivity for rated output for rated output for rated output

Crosstalk -85dB, 1kHz -85dB, 1kHz -85dB, 1kHz

Output ±50 mV, ±50 mV, ±50 mV,Offset Servo controlled Servo controlled Servo controlled

RA150

RA300

RA500

POWERFLEX SERIES


(212) 444-6605 • 1-800-947-9905 • Quick Dial 92PHOTO - VIDEO - PRO AUDIO

749

A S H LY

Four- and Six-Channel Power AmplifiersUsing a state of the art, high-speed MosFet switching design

with spread spectrum switching technology, the Powerflex

4400 and 6250 provide uncompromised power with

exceptional efficiency greatly reducing

wasted power (heat). The 4400 delivers 275w RMS @ 8Ω

or 400W RMS @ 4Ω of superior audio fidelity through

four independent channels, while the Powerflex 6250—

five times as efficient as conventional Class A or AB linear

power amplifiers—delivers 150W RMS @ 8Ω or 250W

RMS @ 4Ω through six independent channels.

◆ Their four or six channels may be used as individual, independentpower amps with more than enough power to satisfy nominal audioapplications. Additionally, three and two channel configurations ofthe Powerflex 4400 are possible for even greater flexibility. Channelsmay be bridged in pairs delivering 800W RMS @ 8 ohms.

◆ On the Powerflex 6250, five, four and three channel configurations arepossible. Channels may be bridged in pairs providing for up to threehigher power (500W/Ch @ 8 ohms) or 70-volt applications. ThePowerflex 6250 can drive as many as six independent 25v or threeindependent 70v amps without the need of external transformers.

◆ The 4400 features bridgeable channels and switchable high pass filteron each pair of inputs. The 6250 offers a switchable high pass filter oneach input. Both feature level controls located on the rear panel,XLR-1/4” and euroblock input connections, 5-way binding post outputconnections and a quiet three-speed fan for on-demand cooling.

◆ Applications include any multichannel power amp application,monitor amp, paging systems, cinema systems, boardroom audioapplications, multiple zone restaurant, bar, theme park or auditorium.The Powerflex 6250 can also be used for any 25 and 70v system,surround sound, recording studios, PA and DJ applications.

FTX SERIES III Stereo AmplifiersThe FTX-1501 and FTX-2001 utilize Ashly’s proven output stage

design, consisting of the latest generation of paralleled power

MOS-FETs for current gain. These devices have smooth

transconductance curves and run at a relatively high idle

current, thus preventing crossover notch distortion. FTX

Series III amplifiers require no dissipation limiting protective

circuitry and provide virtually infinite power gain. This keeps

load reflections from the driver stage, promoting stability

and extremely low distortion.

◆ The FTX-1501 outputs 185w at 8Ω,275w at 4Ω and 275w at 2Ω.

◆ The FTX-2001 delivers a full 300w perchannel at 8Ω, 475w into four, and 550wwhen confronted with a true two ohm load.

◆ Both can be mono-bridged at a powerrating twice their 4Ω per channel capability.

◆ Superior sonic performance with MOSFET

outputs and class-A driver. Fan cooled for

continuous high-power operation.

◆ They are UL approved to ensure compliance

with the specifications of commercial

installations, and are THX approved for use

in cinema and home theater applications.

◆ Both amps are Ashly PowerCard compatible

◆ Modular construction for reliability andserviceability. They include Ashly’s exclusive5-year worry-free warranty.

◆ The FTX-2001(only) can be used to drive 70vsystems when configured in bridged monomode without external transformers.

Powerflex 4400, top; Powerflex 6250, bottom



A S H LY

PE SERIES

750

F E AT U R E S

High Performance, Remote-Controlled Power AmplifiersAshly has long believed that the secret to great

sound and reliability is intelligent design and

meticulous execution. Optimized for cool

operation, modularity, ultimate compatibility

and maximum performance, the PE (Protea

Enabled) Series takes that philosophy and multi-

plies it ten-fold. Featuring superior audio quality

and reliability, the PE Series incorporates

everything you need to interface with virtually

any analog or digital equipment. They even

include future-proof expansion ports. No add-

ons. No awkward fixes. Truly modern amplifiers

that address the needs of today’s professionals.

Six models in the series, each are high-power, high-efficiency, 2RU high, lightweight amps incorporating the latest in

power and control technologies. Each can drive 2, 4 or 8 ohm loads, and they utilize a 2-stage high-efficiency switched

mode power supply, which provides a high-power-to-weight ratio. They can be controlled and monitored via the built-in

ethernet port using Protea Software. The software gives you access to many features, including: input attenuation, chan-

nel mute, channel polarity, input level, output voltage, output current, clipping, temperature, and power on/off.

◆ Each PE Series amplifier provides on-board

analog processing, including a selectable

subsonic filter, a selectable clip-limiter and

an input-sensitivity selector, which can

optimize the amplifier for load and the many

devices that can drive it.

◆ Each includes an array of output current and

temp indicators to monitor various operating

parameters. It’s easy to tell at a glance, for

example, the status of the load being driven

(i.e. “are my drivers working?”).

◆ Standard input connections are via XLR-1/4”

Neutrik combo connectors and 6-pin

Euroblock. XLR male connectors are also

provided for looping to additional amplifiers.

Output connectors are locking Neutrik

Speakon (NL-4) on all models and 4 position

screw terminal strip with safety cover on

models 800 and 1200.

◆ The PE-2400, PE-3000 and PE-3800 are

capable of driving 70-volt systems. Power

specifications are: PE-2400 - 1200W per

channel; PE-3000 - 1500W per channel; and

PE-3800 - 1700W per channel.

◆ Two optional Protea DSP Cards are available. Their SHARC32-bit/96kHz processor enables 24-bit AD/DA, analog anddigital (AES3) inputs. Each offers two additional processedoutput channels to drive additional amplifier channels.(See next page to view the current DSP library).

◆ By adding Protea DSP technology and control to an amplifer,Ashly has designed a comprehensive and easy to use audiosystem. Protea Software allows you to setup, control andmonitor PE Series amps using standard, inexpensive, readily-available Ethernet hardware. Control anywhere from one tohundreds of amps, as well as your Protea Series processors,on- or off-site with the intuitive and friendly Protea software.

◆ They provide DC voltage control of the calibrated Input attenuators, which makes it a snap tocontrol volume from remote locations, and Remote Power Turn-on/-off with sequential powerin/off circuitry built right into the amplifier.

Power Stereo Mono Bridge Parallel MonoModel 8 ohms 4 ohms 2 ohms 8 ohms 4 ohms 2 ohms

3800 1100W 1900W 1500W 3800W 3000W 3800W

3000 900W 1500W 1500W 3000W 3000W 3000W

2400 700W 1200W 1500W 2400W 3000W 2400W

1800 500W 900W 1400W 1800W 2800W 1800W

1200 300W 600W 1100W 1200W 2200W 1200W

800 200W 400W 700W 800W 1400W 800W

PE SERIES


A S H LY


751

Protea SoftwareControl from one to hundreds of amps, as wellas your Protea Series processors, on- or off-sitewith intuitive and friendly Protea Software.

◆ Set up, control and monitor PE Seriesamplifiers using standard, inexpensive,readily-available Ethernet hardware.

◆ Protea mobile software allows wirelesscontrol of PE-Series amps and the DSP-1 andDSP-2 Option Cards for the PE-Series amps.

The PE DSP Card◆ Proteane DSP cards use a SHARC 200MHz,

32-bit floating-point processor andoperate from 48 to 96kHz with a 24-bitAD/DA. The Proteane DSP-1 XLR versionand DSP-2 Euroblock version offer bothanalog and digital (AES3) inputs and twoadditional processed output channels fordriving two more amplifier channels.

— Proteane DSP cards have an extensiveDSP library including: graphic, parametric,notch and shelving equalization filtertypes, Bessel, Butterworth and Linkwitz/ Riley high and low pass crossover filters withslopes of up to 48dB/octave and all pass filters for phase correction. Additional processing blocks include: signal delay, compressor/limiter, gate, matrix mixer, signalgenerators (sinewave, white and pink noise) and metering.

— A “Click and Hot-Plug” user interface allows you to select any processing block andplace it wherever required in your signal chain. The process is seamless and in realtime, with no need to wait for your system to recalculate or recompile its settings.

— By adding a DSP card to your PE-Series amplifier, you have just simplified systemimplementation for many applications in live sound, commercial sound reinforcementand installations. Best of all, standard Ethernet protocol, a PC and Ashly’s easy tounderstand and navigate Proteane Software is used to control everything. Severallayers of security control allow you to determine who can access system settings andalso define the limitations of that access.

◆ In addition to the Ethernet control, remote control via hard-wire and contact closureterminals to accommodate requirements for local operation is provided. These includeremote level control, power standby/power down and recall of up to three presets.

Control ScreenSimple and easy set up, control and monitoring ofyour system, either on site or from anywhere inthe world. It’s browser-based for easy navigationand no need to install custom drivers. Control andmonitor your entire sound system network – setlevels, enable/disable front panel and remoteattenuators, power on/standby, mute, monitorin/out levels, temperature and current.

Network ControlAllows you to set up your system – automatically!Network Control will assign all your IP addressing –no avanced IT or programming degree needed. Or, if you wish, you can set up your system manually, allowing you to isolate your audio gearfrom everything else on the network.

Security ControlGives you flexibility to determine who has accessand to define the limitations of that access.

Functions include:

View Only: Lets someone see what’s going onbut does not allow them to tamper with thesettings

IP Only: Lets the network personnel set up thenetwork or subnetwork and inhibits their abilityto become an audio engineer

Full Audio: Full control of all audio functionsonly

Unrestricted (Full): Full control of all functions

PE SERIES SPECIFICATIONS

Voltage Gain: 26dB, 32dB or 1.5V sensitivity (selectable)

Distortion (SMPTE, typical) - 8 ohm load, 10dB below rated power <0.01%

Distortion (THD+N, typical) - 8 ohm load, 10dB below rated power, 20Hz - 10kHz <0.01%

Frequency Response 20Hz - 20kHz, ± 0.15 dB

Damping Factor - 8 ohm load, <1kHz > 400

Input Impedance 20k Ohm, balanced

Maximum Input Level +21 dBu

Control Network onboard, compatible with standard 100 MB Ethernet hardware

Front Panel Indicators

Per channel Clip, -6 dB, -12 dB, -18 dB, Temp, Output current

Overall power, standby, protect, bridged mono, parallel mono, communications

Attenuators 1 per channel: front panel, software, offset and remote

Input Connectors, each channel XLR female/TRS, Euroblock, XLR male (looping)

Output connectors, each channel Speakon

Load Protection Adjustable clip limiter

Dimensions (WxHxD) 19” x 3.5” x 15.5”

Net Weight 22 to 24lbs.

Control

Screen

▲

Network Control

▲



C R O W N

CE 1000 • CE 2000

752

Power AmplifiersCrown’s CE 1000 and CE 2000 amplifiers are professional

tools designed and built for professional use. They

feature front-panel detented level controls, useful

function indicators, proportional fan-assisted cooling,

short- circuit protection and more.

For superior flexibility, they can work with a range of

Crown SST (System Solution Topologies) modules

which provide true professional features like fixed-point

crossover and summed bass output. With powerful,

reliable performance, the amps easily handle real

2-ohm loads and are capable of chest-thumping lows.

Backed by a three-year, no-fault warranty that covers everything.

◆ Accurate, uncolored sound with very lowdistortion for the best in music and voicereproduction

◆ Bridge-mono/stereo mode switch allowsyou to set up your amps/speakers in theconfiguration that best suits your needs

◆ Extremely versatile they can handle a widerange of speaker impedances and outputs

◆ Switchable input sensitivity

◆ Proportional speed fan optimizes coolingefficiency

◆ Removable front-panel level control knobs

◆ They can be mounted in 19” or shallow 14”racks or stacked on top of each other

◆ Choice of Speakon (comes standard),binding post, or barrier strip outputs

◆ Choice of balanced 1/4” (6.35-mm), XLR, orbarrier strip inputs

◆ Advanced protection circuitry guardsagainst shorted, open or mismatched loads;overloaded power supplies; excessivetemperature; chain destruction phenomena;input overload damage; and high-frequency blow-ups.

◆ They also protect loudspeakers frominput/output DC, large or dangerous DCoffsets and turn-on/turn-off transients.

◆ Three-year No-Fault (fully transferable)warranty even covers round-trip groundshipping in the U.S. for all warranty work.

SST ModulesFor superior flexibility, Crown CE-Series amplifiers are compatible with a range of Crown SST (SystemSolution Topologies) modules to tailor the amp to your application. The modules provide trueprofessional features like fixed-point crossover and summed bass output and install easily into theback of the amplifier to save rack space and simplify system wiring.

The SST-MX module is a fourth-order Linkwitz-Riley type crossover with a fixed crossover pointset at 100 Hz. Truly a professional crossover, the SST-MX uses hard-wired precision componentsthat stay at the frequencies you have selected for consistent bandwidth control.

◆ Stereo biamp

◆ 24-dB/octave Linkwitz-Riley

crossover fixed at 100-Hz

◆ Stereo sub outputs

◆ Neutrik Combo input jacks

◆ Barrier block balancedoutputs

◆ Optional high-pass filterbypass on amplifiedoutputs adapts systemfor full-range use

◆ Stereo biamp

◆ 24-dB/octave Linkwitz-Riley tuned filters

◆ Crossover switchable to either 80 or 120 Hz

◆ Neutrik Combo (1/4” [6.35mm] phone and3-pin XLR) input jacks

◆ Male 3-pin XLR Sub Output

SST-MX: 100-Hz Linkwitz-Riley crossover with stereo sub-bass outputs

SST-SX: 80-/120-Hz switchable Linkwitz-Riley crossover with mono summed sub-bass output

SST-SBSC: variable Linkwitz-Riley stereo cross-over with mono-summed sub-bass output

The SST-SX module is a fourth-order Linkwitz-Riley type crossover with the crossover pointswitchable to either 80 or 120 Hz. High-frequency (HF) signals are routed to the internalamplifier channels, and low-frequency (LF) signals are summed and routed the mono outputconnector. Truly a professional crossover, the SST-SX uses hard-wired precision components thatstay at the frequencies you have selected for consistent bandwidth control.

◆ SST modules install into the back of your amp, saving rack space & simplifying system wiring

F E AT U R E S


C R O W N


753

Engineered from the bottom up for top performance and

unmatched reliability, the CE 4000 was designed using

Crown’s award-winning BCA (Balanced Current

Amplifier) engineering to provide superior power

output, increased efficiency, legendary Crown sound,

and extraordinary reliability.With typical output power

at 1,200 watts per channel, and Burst Power up to 1,800

watts per channel, the CE 4000 not only handles but

excels at handling 2-ohm loads. In repeated stress tests,

the CE 4000 continued to perform at levels 12 dB into clip, long after others had shut down.

Flexibility is also unsurpassed with features like selectable on-board high- and low-filter sets, optional signal control

modules, and dual output connectors. Whether you’re a touring band, A/V rental company or looking for a fixed install

amp, the CE 4000’s lightweight, modern design and lowest cost per watt of any amp in its class, make it the obvious choice.

◆ Patented BCA (Balanced Current Amp)technology delivers high efficiency andsuperb sound. Generates more power andless heat than traditional linear amplifiers

◆ Delivers 1800 watts per channel (bothdriven) into 2 ohms, 1200 watts into 4 ohms,and 600 watts into 8 ohms

◆ Compatible with SST (System SolutionTopologies) input modules for additionalsignal control. SST modules offer a variety ofactive crossover configurations

◆ 31-step detented rotary level control foreach channel

◆ 3-way sensitivity switch is switchable among0.775, 1.4 or 3.46 volts for full output into8-ohm load

◆ Protection from shorted, open or mis-matched loads, input and high-frequencyoverloads. Loudspeakers protected fromin/out DC, and power on/off transients

◆ Amplifier is automatically muted duringpower up to avoid turn-on transients

◆ Designed for the utmost in flexibility, theCE 4000 features sub-bass output viaintegral 4-position high- pass and 3-positionlow-pass filter sets for each channel:

– 4-position, selectable High-Pass filter switchprovides settings for Flat, 30, 40 and 50Hz.Filter rolloff is 18 dB per octave

– 3-position, selectable Low-Pass filter switchprovides settings for Flat, 80 and 100 Hz.Filter roll-off is 24 dB per octave

◆ Clip LED indicators for each channel

◆ 5-Way Fault Indicator:

1) blinks during power-up;

2) excessive heatsink temperature;

3) transformer thermal protection;

4) short at amplifier output;

5) output stage non-operational

◆ Twice as energy efficient as conventionalswitching amps, the CE 4000 requires muchless energy to deliver its massive power intovirtually any load. This efficiency meansmajor savings over the life of the amp. It alsoallows more CE 4000’s to be plugged into asingle AC circuit, reducing installation costs.

◆ Choice of dual output connectors:

—5-way binding post plus Neutrik Speakon

—5-way binding post plus barrier strip

—Dual Neutrik Speakon

◆ Enhanced switch-mode power supply withPFC (Power Factor Correction) allows you toplug the amp in anywhere in the world withany line voltage.

◆ Easy to transport and set up (only 34 lbs.)

◆ Extremely reliable keeps running under theharshest of conditions. However, just in case,it includes a 3-Year “No-Fault” full warranty(even covers round-trip ground shipping inthe U.S. for all warranty work).

F E AT U R E S

CE1000 CE2000 CE4000

2 ohms Dual* 560w 975w 1800w

Rated Output, 4Ω 75w RMS per channel 150w RMS per channel 250w RMS per channel

Rated Output, 8Ω 45w RMS per channel 90w RMS per channel 150 RMS per channel

Rated Output, 8Ω 150w RMS Bridged Mode 300w RMS Bridged Mode 500 RMS Bridged Mode

S/N Ratio >105dB >105dB >105dB

Frequency 10Hz - 70kHz 10Hz - 70kHz 10Hz - 70kHz

Response +0, -3dB +0, -3dB +0, -3dB

Distortion < 0.02% @ 4Ω, 20Hz - 20kHz < 0.02% @ 4Ω, 20Hz - 20kHz < 0.02% @ 4Ω, 20Hz - 20kHz

Input Sensitivity +4dB for rated output +4dB for rated output +4dB for rated output

Crosstalk -85dB, 1kHz -85dB, 1kHz -85dB, 1kHz

Output Offset ±50 mV, Servo controlled ±50 mV, Servo controlled ±50 mV, Servo controlled

* with stand and speakers

CE 4000

F E AT U R E S



C R O W N

CTS SERIES

754

2-Channel and Multi-Channel Power Amps for Installed SoundFor fexibility and value for installed sound applications,

the CTs Series offers power levels and features carefully

chosen to perfectly integrate into fixed install design

requirements. They feature independent selection of high

and low-impedance operation for a specific channel, and

for added fl exibility, include both dual-channel and

multi-channel models. All models feature Crown’s new

Switching Power Supply for lighter weight and are

compatible with the the IQ System. Two-channel models

accept PIP2 modules, and also feature selectable high-

pass filters and input sensitivity for each channel.

Multi-channel models accept MC accessory modules

that provide enhanced control, monitoring, and system

integration. The CTs multi-channel amps also feature

FIT (Fault Isolation Topology), which isolates channel-specific faults and prevents them from affecting remaining channels.

If a CTs multi-channel amp is powering multiple zones, and a channel fails, the other zones continue to operate.

◆ Switching power supply for reduced weight

◆ High power-density, with all two-channelmodels in a 2U chassis.

◆ Direct constant-voltage (70/100/140/200v)or low-impedance (2/4/8 ohm) operation.

◆ Input sensitivity independently selectablefor each channel.

◆ TLC protection circuitry protects the ampfrom long-term excessive heat by subtly anddynamically reducing the gain only whennecessary to reduce heat levels.

◆ PIP2 (Programmable Input Processor)connector accepts accessory modules thattailor the amplifier to suit specificapplications.

◆ Removable terminal block input connectors,with “Y” input switch in the standardPIP2-BBY module.

◆ A soft-start circuit in the power supplymini-mizes amp’s current draw when power-on.

◆ Continuously variable fans optimize coolingefficiency.

◆ Comprehensive array of indicators toprovide accurate diagnostics. These include:Data and Bridge, along with Ready, Signal,Clip, Thermal and Fault for each channel.

◆ Advanced protection circuitry guards against:shorted outputs, DC, mismatched loads,general overheating, under/over voltage,high-frequency overloads and internal faults.

◆ Legendary Crown AB+B (Multi-Mode) outputtopology in the CTs 600/1200 and Class I(BCA) output topology in the CTs 2000/3000offer the best in amplifier reliability.

◆ Switchable high-pass filter for each channelprovides low-frequency roll off to eliminatestep down transformer saturation when usedin distributed systems.

◆ Blue power indicator flashes if the AC mainsis under/ over voltage.

◆ JTS circuitry (CTs 600/1200 only) quicklyprotects output transistors from unsafeoperating conditions without shutting thechannel down.

◆ 3-year No-Fault, fully-transferable warrantyprotects your investment. Crown’s advance-replacement Profit Protection Plan providesno-questions-asked replacement of coveredamps should they fail at any time up to 6months following date of installation.

CTS600 CTS1200 CTS2000 CTS3000

2-ohm Dual (per ch.) 150 250 1000 1500

4-ohm Dual (per ch.) 300 600 1000 1500

8-ohm Dual (per ch.) 300 600 1000 1250

16-ohm Dual (per ch.) 300 300 625 625

70 Volt Dual (per ch.) 300 600 1500 1500

100 Volt Dual (per ch.) NR NR 1500 1500

4-ohm Bridged 300 500 3000 3000

8-ohm Bridged 600 1200 3000 3000

16-ohm Bridged 600 1200 2500 2500

140 Volt Bridged 600 1200 3000 3000

200 Volt Bridged NR NR 3000 3000

CTS SERIES


C R O W N


755

COMMERCIAL AUDIO SERIESCommercial Audio Series amps deliver legendary

Crown quality to the commercial audio industry.

Consisting of the 80A, 280A and 1160A, these

high-value amplifiers provide both 4-ohm and

constant-voltage outputs (70v and 100v) for

use in a wide range of commercial applications

including schools, hospitals, factories, restaurant/retail, houses of worship, fitness facilities and A/V boardrooms.

Multi-Channel (CTs4200/8200) Step-up Features◆ High power-density, with four channels (CTs 4200) or eight channels (CTs 8200) in a

3U chassis

◆ Selectable constant-voltage (70v/100v) or low impedance (4/8 ohm) operation foreach channel pair (channel pair must be operated in Bridge mode for 100v output)

◆ FIT (Fault Isolation Topology) circuitry isolates faults within affected channels

◆ A fixed 35-Hz (70-Hz in CTs 4200) high-pass filter per channel pair is automaticallyinserted when the mode switch is set to either of the constant-voltage settings.The high-pass filter corner frequency in the CTs 8200 can be set to 70 Hz, orbypassed, with a service option

◆ Accepts MC accessory modules for remote VCA level control or IQ System controlto tailor the amp to suit specific applications:

IQ-MC4A and IQ-MC8: A single IQ-MC module provides IQ control and monitoringcapability to all channels of the amplifier. Features include basic IQ amplifier controland monitoring, including attenuation, mute, polarity, input level, output level,power supply temperature, and thermal level meters. Advanced features include IOC,Thermal and Fault error reporting, Load Supervision, output limiting, Listen Bus, AUXcontrol port, 32 presets, and real-time “read-only” software indication of amplifierhardware indicator, level control, and mode switch status.

VCA-MC4A and VCA-MC8: Provides independent remote level control for eachchannel. 4-pin removable Phoenix-style barrier connectors provide the +10VDCcontrol voltage, ground, and control lines for two amplifier channels. Thus, 4-channelamplifiers use two connectors; 8-channel amplifiers use four connectors.

Used in conjunction with a VCA-MC module, the 1-VCAP and 4-VCAP are wall-mountedpanels that provide remote volume control for one or more CTs amplifier channels.The 1-VCAP is a 1-gang panel with one potentiometer, and the 4-VCAP is a 2-gangpanel with four potentiometers.The potentiometer(s) on the panel are wired directlyto one of the VCA connectors on the VCA-MC.

— 180A has 1 input and one 80W power ampfor single-zone systems.

— 280A has 2 inputs and dual 80W poweramps for two-zone systems.

— 1160A has 1 input and one 160W poweramp for single-zone systems.

The amps vary in their number of inputs/outputs, and power range:

◆ 1 or 2 inputs, 1 or 2 amplifier output channels

◆ Ideal for commercial and industrial use

◆ Balanced Phoenix-type line inputs; touchproofedscrew-terminal speaker outputs

C T S S E R I E SCTs 4200 4-Channel Power Amp (CRCTS4200)...............CALL

CTS-4200IQ (CRCTS4200IQ): With IQ-MC4............................CALL

CTS-4200VCA (CRCTS4200VCA): With VCA-MC4A..............CALL

CTs 8200 8-Channel Power Amp (CRCTS8200)...............CALL

CTS-8200IQ (CRCTS8200IQ): With IQ-MC4............................CALL

CTS-8200VCA (CRCTS8200VCA): With VCA-MC4A..............CALL

◆ Advanced protection system includes

output current limiting, DC protection,

circuit breaker/fuse, and thermal

protection.

◆ Three-Year, No-Fault, Fully Transferable

Warranty completely protects your

investment and guarantees amp

specifications.

Mode Channels Driven CTS4200 CTS8200

4 Ω Dual 4 ch. 215 W 175 W

8 Ω Dual 4 ch. 190 W 155 W

70 Volt Dual 4 ch. 220 W* 185 W*

4 Ω Dual 1 ch. 225 W 230 W

8 Ω Dual 1 ch. 210 W 220 W

70 Volt Dual 1 ch. 245 W* 230 W*

8 Ω Bridged 2 ch-pairs 430 W 350 W


100 Volt Bridged 2 ch-pairs 220 W* 185 W*



100 Volt Bridged 2 ch-pairs 245 W* 230 W*

All ratings measured @ 20Hz - 20kHz except * which are constantVoltage full bandwidth power ratings at 100Hz - 20kHz due toautomatic High-Pass Filters



C R O W N

D-45 • D-75

756

◆ Housed in a rugged, all-steel 2U

chassis.

◆ Clip limiters protects loudspeakers

from being overdriven.

◆ Efficient forced-air fans prevent

excessive thermal buildup.

◆ Electronically balanced XLR inputs;

touchproof binding post and

Speakon outputs.

◆ Selectable high-pass filter on eachchannel enables them to work moreefficiently when full band-width isn’trequired.

◆ Precision detented level controls,power LED, and six LEDs whichindicate signal, clip and fault for eachchannel.

◆ 3-Year, no-Fault, fully transferablewarranty.

With their long history of

reliability, D-45 and D-75A

amps are the ideal choice for

use on the road, in recording

studios, labs and in public

facilities. Very compact (1RU),

the convection cooled D-45 and D-75A provide ultra-low distortion for medium power applications making them perfect

for moderate power applications such as broadcast studio near-field monitoring, a recording/broadcast headphone

amp or a small paging system. Designed, built and carefully checked to ensure reliable operation with a wide variety of

loads, Crown’s AB+B circuitry ensures efficient use of output transistors while incorporating protection against shorted,

open, mismatched or low-impedance loads. Both include the industry’s only 3-year, no-fault, fully transferable warranty.

◆ Powerful AB+B class circuitry yieldsmaximum efficiency with minimumcrossover “notch” distortion

◆ IOC (Input/Output Comparator) alerts of anydistortion that exceeds 0.05% to provideproof of distortion-free performance

◆ Detented level controls for precise repeatability

◆ Ultra-low harmonic and intermodulationdistortion result in the best dynamictransfer function in the industry

◆ Very low noise and wide dynamic range

◆ High damping factor provides exceptionalloudspeaker motion control

◆ Signal presence indicators verify thepresence of amplifier output

◆ Convection cooling dissipates heat throughthe heat sinks and chassis for optimalcooling and maintenance-free operation

◆ Mounts in a standard 19” rack

◆ 3-Year, no-fault, transferable warranty

XLS SERIESXLS-202, XLS-402, XLS-602, XLS-802The XLS Series of power amplifiers from Crown represents a new

era in affordable, quality power amplification. Identical except for

output power and weight, the line consists of four models in a

uniform, rugged 2U chassis. They offer a Bridge/Mono Switch that

allow users to quickly and easily set the amp for Bridge Mono mode.

Also, the signal indicators greatly increase monitoring capabilities.

POWER OUTPUT @ 1 kHz with 0.5% THD

D-45 D-75A

4 ohm Dual* 35w 55w

8 ohm Dual* 25w 40w

16 ohm Dual* 20w 25w

8 ohm Bridge-Mono 70w 110w

16 ohm Bridge-Mono 50w 80w

* maximum power @ 1 kHz with 0.5% THD

POWER OUTPUT @ 1 kHz with 0.5% THD

XLS202 XLS402 XLS602

2 ohm Stereo* 250w 570w 240w



8 ohm Bridge-Mono — 800w 1200w

* per channel

CP-660


C R O W N


757

F E AT U R E S

6-Channel AmplifierCrown’s CP660 six-channel power amplifier

gives you super flexibility and the best

watts-to-dollar ratio around. With six

independent channels, the CP660 takes the place of three, two-channel amplifiers, yet still fits in a standard two-rack

space. Its 75-watt average power output per channel is ideal for a variety of surround-sound uses, as well as many

paging, zoning and background music applications. Plus, when you need it, you can easily bridge any pair of channels for

double the power.

Rear-mounted controls and connectors on the CP660 minimize

the chance of unauthorized changes, and provide a clean look

for the front panel. A super-quiet, variable speed fan provides

just the right amount of cooling, only when it’s needed.

Like all Crown amplifiers, the CP660 has been carefully constructed using graded, high-current metal transistors and

other quality components, ensuring years of reliable operation. Plus, it’s backed by Crown’s unmatched, industry-leading,

three-year, no-fault warranty, which guarantees the amp is covered no matter what, even if it's damaged by accident.

◆ Designed for a wide range of demandingapplications, including multi-channel, distributed sound, surround and stereo systems.

◆ Perfect for applications with multi-zoneneeds, such as cafeterias, restaurants,schools and theaters, the CP660’s efficientdesign allows convenient, cost-effective, reliable operation in a compact, 2RUspace format.

◆ This highly efficient amplifier includes apower sharing design that provides extrapower to channels where it’s needed most.

◆ A discrete component power designemploys rugged, high-current metal outputtransistors for maximum reliability.

◆ The super-quiet, variable speed fan operatesaccording to thermal demand, while thefront-panel air intakes provide the mostefficient cooling in any rack.

◆ The CP660 brings you maximum flexibilityfor configuration, with six independentamplifier channels. Each pair of outputchannels can be bridged, using convenientswitches on the back panel, to providethree, four or five channels with higheroutput power. In addition, each channelincludes its own back-panel gain controlfor convenient system balancing.

◆ Barrier strip connectors are provided for theinputs, and heavy-duty 5-way binding postsallow secure output connections.

◆ Six independent level controls on the backpanel allow convenient level balancing of allchannels.

◆ Three Dual/Mono switches on the backpanel give a broad range of flexibility inconfi guring your system.

◆ Super-quiet, variable-speed fan with autotrigger for silent, effective cooling.

◆ High-quality, standard-spaced doublebanana- jack/binding-post outputconnections facilitate any type of speakerconnection, including heavy-gauge wire.

◆ The CP660 amplifi er is protected againstshorted, open or mismatched loads;overloaded power supplies; excessivetemperature; chain destruction phenomena;input overload damage; and high-frequencyblowups. It also protects loudspeakers frominput/output DC, large or dangerous DCoffsets and turn-on/turn-off transients.

Crown’s Three-Year, No-Fault, Fully Transferable WarrantyCrown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown amplifier—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crownamplifier is warranted to meet or exceed original specifi cations for the first three years ofownership. During this time, if your amplifier fails, or does not perform to original specifications,it will be repaired or replaced at our expense. About the only things not covered by this warrantyare those losses normally covered by insurance and those caused by intentional abuse. And thecoverage is transferable, should you sell your amplifier.

Six-Channel Mode

4-ohm 8-ohm

1 Channel/ 1 Load 130W 90W

4 Channels/ 4 Loads 100W 70W

6 Channels/ 6 Loads 75W 60W

Bridge Mode

8-ohm

2 Channels/ 1 Load 250W

4 Channels/ 2 Loads 200W

6 Channel/ 3 Loads 150W



E AW

CXA120 • CXA240

758

CXA 120/240◆ Single channel

◆ 4 Ohm - 25v - 70v - 100v outputs

◆ Adjustable input levels

◆ Automatic 24v DC backup power input

◆ 115v or 230v AC mains determined by avoltage select switch

CXA 120 Only◆ Discrete component 120w power amplifier

◆ Convection cooled for quiet operation

◆ Two actively balanced screw terminal inputs

◆ Voice activated priority override

◆ Hi and Lo EQ on the front panel

◆ Rack mounting kit included

CXA 240 Only◆ Discrete component 240w power amplifier

◆ Dual speed fan cooling for quiet operation

◆ Actively balanced XLR inputs, unbalancedRCA jacks — dual channel inputs aresummed to mono

◆ Thermal protection circuitry

120W and 240W Power AmplifiersAlthough the CXA 120 (120w) and CXA 240 (240w) are single channel

power amplifiers mainly designed for low voltage applications (25V,

70V, 100V), they can also be used with a 4 ohm load. This makes the

CXA series amplifiers adaptable to most installations. Their ability to

be run from a 24v DC backup power supply, seamlessly switching to DC

when the AC power is lost, means that you can have a working system even

if there is in an emergency situation. Applications for the CXA Series include pag-

ing systems, houses of worship, hotel and ballrooms, meeting rooms, schools, offices,

foreground/background music systems.

CAM60 • CAM15060W and 150W Integrated Mixer/Amplifiers

The CAM60 (60w RMS) and CAM150 (150w RMS) are designed

for continuous use in installations that may require the mixing

of several input sources before being fed throughout a venue.

By integrating the mixer and amplifier together they save

precious real estate and money. The powered outputs include

use for 25v, 70v, 100v, and 4 ohm connections. Applications for

the CAM60/150 include multi-input paging systems, house of

worship, hotel and ballrooms, meeting rooms, schools, offices,

foreground/background music systems.

◆ 60W RMS (CAM 60), 150W RMS (CAM 150).

◆ Four, actively balanced, XLR, 1/4” mic/linecombi inputs with a sensitivity switch forline level, mic level.

◆ Front panel Mic/Line input, Aux, and masterlevel controls, as well as bass and treble.

◆ 25v, 50v, 70v, 100v and 4 Ohm outputs.

◆ Switched 24v phantom power.

◆ RCA aux stereo and srew terminal telephone

paging inputs.

◆ A signal processing loop for adding

outboard dynamics and/or EQ.

◆ An LED meter indicates signal strength and

output overload.

◆ An internal 1 watt amplifier with level

control allows monitoring of the Aux input.

◆ Automatic 24v DC backup power input.

◆ The CAM 150 adds fan cooling.

Voice Priority Function◆ Input 1 has voice-activated priority over

Inputs 2 to 4 and the Aux Input. Inputs 1 to4 have switch-activated priority over theAux input. The Telephone Paging input hasvoice-activated priority over all inputs.

CXA240

CAZ SERIES


E AW


759

◆ Discrete component power amplifiers.

◆ Ultra low-noise/low-distortion design.

◆ Switchable limiter and low-cut filter @ 30 Hz

on both channels.

◆ Balanced/unbalanced 1/4”TRS and XLR line

input jacks.

◆ Balanced screw terminal input connectors.

◆ Screw terminal output connectors

(Ch. A, B, and Bridged Mono).

◆ Detented, dB calibrated, rotary gain

controls.

◆ Signal present and OL (overload) LEDs.

◆ Robust chassis, proven design.

◆ Double-sided, quality circuit boards.

◆ Power LED indicator.

◆ 2.5 second turn on delay.

◆ Variable speed fans and large-finnedheatsinks for superior cooling.

800w, 1400w and 2500w Stereo Power AmplifiersThe CAZ Series of stereo power amplifiers are designed for continuous

use in sound reinforcement applications that demand high

performance and rugged dependability. The CAZ800 offers

800 watts continuous at 4 ohms bridged; the CAZ1400 provides

1400 watts continuous at 4 ohms bridged; and the CAZ2500

delivers a walloping 2500 watts continuous at 4 ohms bridged.

The CAZ series are all easily switchable for mono, stereo and bridged mono

operating modes and they are ideal

for use in paging systems, houses of worship, hotel and

ballrooms, meeting rooms, schools, offices and foreground/

background music systems.

CXA120 CXA240 CAM60 CAM150

Ouput

Low Z 120 W, 4 ohm 240 W, 4 ohm 60 W, 4 ohm 150 W, 4 ohm

High Z 25 V,15 ohm – 25 V, 10 ohm 25 V, 4 ohm

High Z 70 V, 42 ohm 70 V, 21 ohm 70 V, 83 ohm 70 V, 33 ohm

High Z 100 V, 83 ohm 100 V, 42 ohm 100 V, 170 ohm 100 V, 67 ohm

Dimension (HWD) 3.9 x 17.1 x 13.2” 5.25 x 18.9 x 14.5” 3.9 x 17.1 x 13.2” 3.9 x 17.1 x 13.2”

Weight 19.4 lbs 31.1 lbs 22.3 lbs 25.6 lbs

CAZ800 CAZ1400 CAZ2500

Topology Class AB Class AB Class H

Output: (Continuous sine wave average output power per channel with both channels driven; 120 VAC)

8 ohms (20 Hz to 20 kHz) 205 watts/channel 310 watts/channel 575 watts/channel



Output: (Bridged Mono operation; 120 VAC)

8 ohms (20 Hz to 20 kHz) 560 watts 900 watts 1500 watts

4 ohms (20 Hz to 20 kHz) 800 watts 1400 watts 2500 watts

Dimensions (HWD) 3.5” x 19 x 15.7” 3.5” x 19 x 15.7” 3.5” x 19 x 15.7”

Weight 43.6 lbs 48.5 lbs 56.2 lbs



M AC K I E

M-SERIES

760

Class-H Power AmplifiersThere are three models available in Mackie’s M-Series

stereo power amplifiers: the M-2000, M-3000 and

M-4000, with 2000W, 3000W and 4000W, respecitvely.

M-Series power amplifiers utilize the highly efficient

Class-H circuit topology, which modulates the amplifier’s

voltage as determined by the input signal. This technology maximizes power while

allowing the amps to run cool, thus adding to their long term reliability. The M-Series also feature Mackie’s own Baker

Clamp-based Fast Recovery circuitry, which prevents harmonic distortion, while preserving the intergrity transients.

Inputs include Neutrik XLR, 1/4” TRS combi connectors, as well as balanced screw terminal connectors. A switchable filter,

with settings for full, high-pass and low-pass, is available for each channel. This circuitry acts as a built-in crossover that

allows you to, for example, use one channel for a woofer or subwoofer and the other channel for mid and high frequencies.

Speaker outputs include industry standard Speakon connectors and binding posts. Independently switchable output

limiters are provided for each channel, on the rear panel. Their front panels feature channel one and two level controls, as

well as 6-segment LED metering and internal staus LEDs for each channel. For reliability, they use of advanced protection

circuitry, including thermal protection, output DC offset

protection, input slew protection and extensive output stage

protection. The M-Series are housed in robust, 3RU steel

chassis and include a 5-year limited warranty.

◆ High efficiency Class-H stereo powerampsdeliver more clean power and lessdestructive heat from a 120/240V poweroutlet.

◆ Adaptive Slewing Technology forincredibly fast transient response withminimal distortion.

◆ Fast Recovery circuitry reduces distortion at

the edge of clipping and beyond.

◆ Switchable 150Hz LPF/HPF for instant 2-way

loudspeaker systems.

◆ Low feedback / Low distortion design with

triple Darlington output stages.

◆ Extensive Protection Circuits for powersupply over-temperature protection, lowvoltage / brownout protection, and fusibleresistors throughout.

◆ True 2-Ohm power drive capability meansthe amps can sustain real-world 2-Ohmloads.

M•2000 M•3000 M•4000

Continuous Average Output Power in watts, both channels driven

20 Hz-20 kHz into 8 ohms per channel 325 475 650



Bridge Mono: 20 Hz-20 kHz into 8 ohms 1050 1600 2100

Bridge Mono: 40 Hz-20 kHz into 4 ohms 1600 2400 3200

Maximum Output Power in watts, both channels driven

1 kHz @ 1% THD into 8 ohms per channel 400 600 800



Bridge Mono: 1 kHz @ 1% THD into 8 ohms 1300 2000 2600

Bridge Mono: 1 kHz @ 1% THD into 4 ohms 2000 3000 4000

JUICE SERIES


TA P CO b y M AC K I E


761

P H O N I C ICON 300 / ICON 700Contractor Power AmplifiersThe ICON 300 and ICON 700 are cost effective contractor power

amplifiers that provide you with standard low impedance outputs

via binding post connectors and 25v, 70v and 100v line operation

via barrier strip outputs. A separate toroidal secondary transformer in each amp offers full electrical isolation and ensures

maximum audio separation. They also feature power up muting, full short-circuit temperature, DC offset protection and

a built-in 45 Hz subsonic filter that prevents speaker transformer saturation with minimal effect on program material.

◆ Barrier strip connection determines output mode of25v, 70v or 100v.

◆ XLR and barrier strip inputs plus XLR link outputs foreasy pass through for use in multi-amp setups.

◆ Automatic, dual-speed, high efficiency fan keeps theamplifiers running cool.

◆ 25V, 70V or 100V and low impedance outputs areavailable simultaneously.

◆ Rear panel detented gain controls.

◆ Stereo, bridge, or parallel operating modes.

◆ Full short-circuit, temperature and DC offset protection.

Two Channel Power AmplifiersThe Juice Series deliver big performance at an affordable

price for almost any live sound reinforcement situation.

Whether it’s the 800 Watt/CH (4Ω) J•800, 1400 Watt/CH

(4Ω) J•1400 or the 2500 Watt/CH (4Ω) J•2500 each amp

offers serious power and professional features with rugged build quality — both inside and out. Connectors include

balanced XLR and 1/4” TRS inputs as well as robust Neutrik Speakon connectors and binding post speaker outputs.

◆ Easily switchable mono/stereo/bridged mono operating modes

◆ Separate Speakon outputs for Channel A and Channel B plus athird Speakon output for mono bridged applications as well asproviding both output channels on a single NL4 connector

◆ A switchable 9db @ 30Hz subsonic filter provides low-frequencyspeaker protection

◆ Front mounted handles for easy transport and protection of levelcontrols

◆ Defeatable clip limiter; 2.5 second turn on delay

◆ Dual variable-speed fans with back to front airflow cooling system

◆ Front panel channel A and B signal present, overload and powerindicators

J•800 J•1400 J•2500

Amp Topology Class AB Class H Class H

Average Output Power:

2 ohms (Stereo) 480 W/ch 800 W/ch 1400 W/ch

4 ohms (Stereo) 300 W 450 W 750 W

8 ohms (Stereo) 205 W 310 W 575 W

4 ohms (Bridged Mono) 800 W 1400 W 2500 W

8 ohm (Bridged Mono) 560 W 900 W 1500 W

Gain 30 dB 32 dB 34 dB

Frequency Response 25Hz - 25kHz 25Hz - 25kHz 25Hz - 25kHz

Weight 43.6 lbs 48.5 lbs 56.2 lbs

ICON 300 ICON 700

Max. Power Rating @ 8 ohms (Stereo) 120W/side 2x 240W/side

Max. Power Rating @ 4 ohms (Stereo) 200W/side 400W/side

Max. Power Rating @ 2 ohms 300W/side 550W/side

Mono Bridge at 8 ohm 420W 850W

Mono Bridge at 4 ohms 540W 1100W

200v or 140v Bridge 300W 700W

100v or 70v 150W/side 350W/side

25v 120W/side 280W/side

Frequency Response 50Hz-50KHz 50Hz-50KHz



Q S C762

Professional Power AmplifiersThe RMX Series amplifiers offer clean, dynamic power with legendary QSC

sound quality and reliability for unmatched performance. Providing

professional quality at affordable prices, they range in power from 430 watts

to 2000 per channel at 2 ohms, all in a compact chassis only 2 rack spaces

high and less than 16” deep.

A powerful high-current toroidal transformer and ample filter capacitance

ensure generous energy reserves. This makes a critical difference in sound

quality, because it allows the amps to effortlessly punch out high level

transients, even when driving abusive 2-ohm speaker loads. A full

complementary output circuit using the highest-grade linear output devices

delivers ultra-low distortion and a ruler-flat frequency response. RMX output

devices are direct-mounted to the heat sink for optimum thermal coupling

and cooling. Other features include user-defeatable clip limiters and selectable

low-frequency filters to optimize sonic performance. They are equipped with

XLR and 1/4” balanced inputs, and Speakon and binding post outputs.

RMX Series Features◆ High-current toroidal transformers for

greater 2-ohm power and low noise

◆ Barrier strip, XLR and 1/4” balanced inputsplus Speakon and binding postoutputs provide easy connections.

◆ Low-noise variable speed fans with rear-to-front air flow keep amps and racks cool

◆ Front mounted gain controls for easy access

◆ Signal and Clip LED indicators helpmonitor performance

◆ Amplifier protection includes full shortcircuit, open circuit, thermal, ultrasonic,and RF protection. Stable into reactive ormismatched loads.

◆ Independent DC and thermal overloadprotection on each channel automaticallyprotects amp and speaker

◆ 3-year warranty plus optional 3-yearextension available

RMX “HD” Step-up Feature◆ RMX 1850HD and 4050HD “Heavy Duty”

provide improved thermal performance to give you higher continuous power in 2-ohms stereo or 4-ohms bridged applications.

◆ Independent defeatable clip limitersreduce distortion without sacrificing peakperformance. When an RMX is pushed toextremes, the clip limiter automaticallyfinds the exact point of overload andkeeps the amp in its “Peak Zone”, preventingsevere distortion without reducingperformance.

◆ Prevent low-frequency muddiness withselectable 30 or 50Hz low-frequency filtersand boost your system’s response bymatching the amp’s range to the speakers.Each channel is separately adjustable:50Hz for compact full-range speakers;30Hz for subwoofers and large full-rangesystems (OFF for studio monitoring).

◆ The clip limiter and low-frequency filter are independently adjustable for each channel

Thermal ManagementSystem providescontinuously variable speedfan for quiet operation.Rear-to-front air flow keepsamps and racks cool.

F E AT U R E S

RMX 850 RMX 1450 RMX 1850HD RMX 2450 RMX 4050

2 ohms Dual

8Ω EIA 1 kHz, 0.1% THD 200W 280W 360W 500W 850W


2Ω EIA 1 kHz, 1% THD 430W 700W 900W 1200W 2000W

BRIDGE MONO MODE Bridge Mono Mode Operation


4Ω EIA 1 kHz, 1% THD 830W 1400W 1800W 2400W 4000W

RMX SERIES


Q S C


763

All PLX II Models Feature◆ Very light weight (“02” models, 21 lbs, “04”

models 13 lbs).

◆ Cooling design exhausts hot air out thefront, keeping the rack cool. Flow-throughheat sinks require no filters that couldpotentially become clogged.

◆ Front panel LED power, clip, -10 dB, andsignal present indicators for systemmonitoring and troubleshooting. 02 modelsalso feature bridge and parallel mode LEDindicators.

◆ Speakon NL-4 output connectors provide apositive-locking speaker connection. Ch 1output uses all 4 wires for single-cableconnection to bi-amplified speakers.

◆ 21-position front-panel gain controls forprecise, repeatable level adjustment.

◆ Balanced (Parallel) XLR and 1/4” TRS inputswith support for loop-through operation.

◆ Patented PowerLight power supplytechnology with other patents pending.

04 Models Feature◆ Value combined with uncompromised PLX

technology, quality and performance for

applications that don’t require bridged or

2 ohm stereo operation.

◆ Two models with power ratings up to 900

watts per channel @ 4 ohms.

◆ Clip limiting protects speakers; thermal

limiting maintains operation even during

abnormal overloads.

02 Models Feature◆ Speakon NL4 and binding post outputs

◆ 100Hz high pass and low pass filters forbi-amping subwoofer and satellite systemswithout the need for an external crossover

◆ Defeatable 33Hz infrasonic filters protectwoofers from over-excursion damage

◆ Defeatable clip limiters

◆ Four models with power ratings up to 1800watts per channel @ 2 ohms, 3600 wattsbridged @ 4 ohms

Professional Power AmplifiersThe PLX2 series is a range of premium quality, high-power amplifiers,

that combine superlative audio quality, with plenty of clean,

undistorted output, and proven QSC reliability in a lightweight

package. The range of PLX2 amplifiers are divided into two groups:

the 02 models and the 04 models. The 02 models (PLX1802, PLX2502,

PLX3102 and PLX3602) are able to drive up to four loudspeakers

from each amplifier channel (2 ohm loading), or can deliver

extremely high power when bridged mono operation is required.

The 02 models feature built-in subwoofer processing, filter switches,

and front panel indications of bridge mono status.

The 04 models (PLX1104, PLX1804) are even more compact and light

weight (just 13 pounds) than the 02 models. They offer the same

uncompromised performance and technology as the rest of the PLX

series, and yet they have been made more affordable for applications

that don't require bridged or 2 ohm operation. Instead, the 04 models

are designed to power one or two speakers from each amplifier channel

(4 ohm minimum loading). The 04 series amplifiers are perfect for portable presentation

rigs, as well as reference-quality playback.

F E AT U R E S

PLX II SERIES

Stereo watts per Channel Bridged watts

8 ohms* 4 ohms* 2 ohms** 8 ohms* 4 ohms**

PLX1104 325W 550W - - -

PLX1804 600W 900W - - -

PLX1802 330W 575W 900W 1200W 1800W

PLX2502 450W 750W 1250W 1500W 2500W

PLX3102 600W 1000W 1550W 2100W 3100W

PLX3602 775W 1250W 1800W 2600W 3600W

* 1 kHz, 0.1% THD, both channels driven / ** 1 kHz, 1% THD, both channels driven



R A N E

MA3

764

Multichannel AmplifierThe MA 3 is a three-channel amplifier

specifically designed for use in paging,

foreground music, and background

music distribution. Each channel of the

MA 3 delivers 40 watts of continuous

average power into 8 ohms and 60 watts into 4 ohms. Up to three optional 40 watt, 70.7 volt or 100-volt constant-voltage

audio transformers may be installed inside the MA 3, eliminating the need for external wiring or transformer mounting.

The combination of a solid, conservative power supply and forced air cooling allows the MA 3 to simultaneously deliver

60 watts of continuous-average-power to all three channels.

◆ Fast-response limiters allow the MA 3 to tolerate

up to 20 dB of overdrive into 8 and 4 ohm loads

while holding THD below 1%. This means no loss

of speech intelligibility or harsh clipping. Greatly

increases the dynamic range of the

system without external limiters. Peak-responding,

load-adaptive meters accurately indicate the

remaining headroom, and are helpful in setting

system levels and indicating signal compression.

◆ Balanced inputs with Euroblock connectorsare provided. Euroblock output connectorsaccept up to 12 gauge wire. Rear panellevel controls allow amplifier sensitivityadjustment.

◆ Internally selectable 80 Hz highpass filtersoffer protection against over excursion ofsmall bookshelf speakers and saturation ofdistribution transformers at low frequencies.

MA6S Multichannel Amplifier The MA6S supplies six completely independent

amplifier channels in one 3-space rack-mount

unit. Each channel delivers 100 watts RMS

into an 8-ohm load, or 150-watts each into a

4-ohm load. Adjacent pairs of Channels (1 & 2,

3 & 4, 5 & 6) operate bridged to provide

300-watts into an 8-ohm load. Each channel

of the MA 6S includes an input Voltage Controlled Attenuator (VCA). This carefully designed VCA prevents clipping at the

output of the amplifier for any load for up to 15 dB of input overdrive. This VCA provides additional headroom to each

Channel, making the 100 watt ratings effectively much higher, and the results much louder.

◆ Unprecedented degree of flexibility:

◆ Use it as a monitor amplifier for six separate

Channels of stage monitor mixing;

◆ Drive a pair of two-way speakers bi-amped

with two bridged pairs at 300w for the low

end and two 100w channels for the high

end, each with limiters for driver protection

◆ Run three bi-amped monitors at 100w each

◆ Drive three passive two-way monitors at

300 watts each

◆ Individual indicators for each channel

indicate the status of the Mute Relay,

Clipping Protection, and Safe Operating

Area (SOA) Protection circuits.

◆ Heavy gauge all-steel construction offers

a high level of mechanical integrity,

even when the amp is rack-mounted and

unsupported in the rear. As an added

benefit, mounting holes are provided on

the side rails so the amplifier may be

supported from the back.

◆ All channels of the MA 6S are completelyindependent. Each is contained on its owncircuit board making it immune to the actionsof any other channel.

◆ Power supply is designed so that signal won’tback-feed from a heavily loaded channel toany other channel. This makes power supplycross talk between channels inaudible.

◆ Euroblock quick disconnects allow fast andinexpensive connection of input and outputsignals. Up to 12 AWG wire can be used.

◆ SPiKe dynamic protection circuitry

completely safe-guards each channel

against over-voltage, under-voltage,

overloads, transients from inductive

loads, thermal runaway and

instantaneous temperature peaks.

Biasing is not allowed to occur when an

under-voltage condition exists, reducing

turn on and turn off transients.

RA235 • RA200 • RA900


R O L L S


765

Stereo Power AmplifiersRA Series power amps deliver clean and efficient

power for use in studios, schools and houses of worship.

The RA235 is a 35-watt stereo power amp built into an

industrial-strength single rack space enclosure. The

RA235 is also quiet because it uses a front panel

heat sink instead of a noisy fan.

The dual rack spaced RA200 offers 100-watts/channel

stereo into 4 ohms and features MOSFET drivers in a voltage and current gain circuit that are fault protected from momentary

output shorts. A one second power-up delay prevents audio spikes from damaging your speakers, while LED power output

meters provide assurance that your system is running properly. The RA900 is a two channel amp than can drive 410 watts into

4 ohm outputs. When bridged, the RA900 can be connected to a 4 or 8 ohm load supplying up to 1100 watts or 850 watts

respectively. The RA900 is ideal for demanding sound reinforcement applications such as front-of-house speakers or monitors.

RA170 • RA2100B 70-Volt Install Power AmplifiersThe RA170 is a sturdy, single rack space, mono 70v amp

designed for installation applications. It requires no trans-

former coupling to drive 70v speakers directly. It offers a

choice of RCA and 1/4” unbalanced inputs, while outputs

are provided via spring-loaded terminals. The simple front

layout panel includes a power and clip indicator LEDs and

a volume control. The output circuitry is protected from

momentary shorting and excessive load by a specially designed protective circuit.

The RA2100b is a stereo power amp with a flexible architecture that will allow the unit to be used to drive 4 or 8 Ohm speakers,

25V speakers (individual channels) or 70v speakers (in bridged mode). Designed for use in small to medium sized install

applications, it is housed in a dual rack space chassis and features high performance transformers and a fused power line.

RA235 RA200 RA900 RA170 RA2100B

Power Output (Stereo, 8Ω) 35 Watts/ch 70 Watts/ch 260 Watts/ch – 85 Watts/ch

Power Output (Bridged 8Ω) N/A 200 Watts 850 Watts 70 Watts 200W

Inputs 1/4˝ TS and RCA 1/4˝ TRS and RCA 1/4˝ TRS and XLR RCA and 1/4˝

Outputs Spring-loaded 1/4˝ and 5-way 5-way Binding Posts Spring-loaded 1/4˝ and 5-way

Terminals Binding Posts Terminals Binding Posts

Fault Protected Outputs – Yes Yes Yes Yes

Cooling Convection Convection 2-Speed Fan Yes Yes

Output Metering Clip LEDs 4-segment LEDs 4-segment LEDs Clip LED 4-segment LEDs

Dimensions (W x H x D) 19 x 1.75 x 5˝ 19 x 3.5 x 7.5˝ 19 x 3.5 x 15.9˝ 19 x 1.75 x 5˝ 19 x 3.5 x 7.5˝

Weight 5.5 lbs 12 lbs 31 lbs 5.5 lbs 12 lbs



S A M S O N

SERVO 200 • 300 • 600

766

Power AmplifiersSamson’s Servo amplifiers feature large 10-segment

3-color level LED meters and independent channel

volume controls. The rear panels include 1/4” balanced

and RCA input connectors, as well as 5-way binding post

and 1/4” speaker outputs.

The Servo amp line also feature a 4-stage power protection

circuitry that ensures optimal performance and protection

of connected components.

Perfect for installation sound, the Servo 200 is ideal for

powering small to medium sized speaker chains, as well

as playback and studio monitors.

The Servo 300 is a great choice for powering a small to

medium sized PA, or an integrated conference room audio system. The Servo 600 is ideal for larger applications where

added power is needed to drive multiple speaker chains, or larger format speakers.

SERVO 120APower Amplifier

Ideal for powering near field monitors or

installation sound, the new Servo 120a

provides you with “reference-class” audio

performance and reliability in a compact package. Perfect for studio, live sound and home theater applications, the

120a’s bipolar design and toroidal transformer power supply ensure reliability and quiet performance.

◆ 1RU high power, convection-cooled amp

◆ 60 Watts per side at 4 ohms stereo

◆ 120 watts at 8 ohms (bridged mono)

◆ 1/4” balanced phone jack and RCA inputs

◆ Bi-polar design and toroidal transformerpower supply

◆ Individual left and right Level controls

◆ 5-segment, 3-color LED meters

◆ Headphone jack with speaker output mute

120A 200 300 600

Power Rating 4 Ohms (Stereo) 60 Watts/side 100 Watts/side 150 Watts/side 300 Watts/side

Power Rating 8 Ohms (Bridged) 120 Watts 200 Watts 300 Watts 600 Watts

Damping Factor >150 280 (400 Hz) 280(400 Hz)

Total Harmonic Distortion 0.01%* 0.01%** 0.01%** N/A

Frequency Response (+0, -0.5 dB) 10Hz to 20kHz 20Hz - 20kHz 20Hz - 20kHz N/A

Cooling System Convection Vari-speed fan Vari-speed fan Vari-speed fan

Dimensions (WxDxH) 17.5 x 11.5 x 1.75” 19 x 11.7 x 3.5” 19 x 11.7 x 3.5” N/A

Weight 15.6 lbs 15 lbs. 20 lbs. N/A

*80kHz LPF @ 1kHz, rated output power **(20Hz - 20kHz, 10dB below rated output power)

SX1200 • SX1800 • SX2400 • SX2800


S A M S O N


767

Power AmplifierThe SX-1200 is an affordable stereo power amp with

an efficient class AB architecture that delivers 600w

per side at 2 ohms, or 1200w mono at 4 ohms —

enough power to effectively drive a moderate sized PA,

monitors, or fixed installation system. The SX-1200 is

housed in a sturdy, all steel dual rack space chassis

and is cooled with a variable speed fan. The

combination XLR and 1/4” TRS line inputs along with

the 5-way binding post and speakon outputs provide

the wide range of secure connectivity required by

demanding professional applications. Front panel

Signal, Peak and Protection LED indicators ensure

that you set the level controls properly.

The SX-1800 also uses the efficient class AB design,

but steps up with a power rating of 1800w (mono),

or 900w per side (stereo) at 2 ohms.

The SX-2400 utilizes a high output rail-switching amplifier design allowing 1200w per side or 2400w bridged mono at 4

ohms. This kind of power is perfect for large multi-format full-range and subwoofer systems. With locking XLR inputs and

Speakon speaker outputs your connections are secure, solid, and worry free.

The SX-2800 is the most powerful amplifier in the lineup, yet it is housed in a similar dual rack space enclosure as the

other amps. It also utilizes a high output rail-switching amplifier design allowing 1400w per side or 2800w bridged mono

at 4 ohms. This is perfect for driving 18” subwoofers and mains for larger venues such as auditoriums.

◆ Professional Class AB (SX1200/SX1800) andprofessional high power rail-switching(SX2400/SX2800) power amplifiers

◆ Dual variable-speed fan cooling system

◆ Signal, Peak, and Protection circuit indicators

◆ XLR and 1/4”TRS inputs

◆ 5-way binding post and speakon speakeroutputs

◆ Dual rack space design

SX1200 SX1800 SX2400 X2800

Rated Output Power

Stereo both channel driven 8 ohms 300 Watts 400 Watts 550 Watts 700 Watts

4 ohms 450 Watts 600 Watts 750 Watts 900 Watts

Bridged mono

8 ohms 900 Watts 1200 Watts 1500 Watts 1800 Watts

Signal to Noise Ratio (20Hz-20k) 102dB 102dB 104dB 104dB

Distortion (typical @4 ohms)

20Hz-20kHz,10dB below rated power 0.01% 0.01% 0.03% 0.03%

1kHz, rated power 0.1% 0.1% 0.1% 0.1%

Damping Factor (400Hz) 280 280 350 350

Frequency Response @ 8ohms 1Watt 0/-0.5dB:20Hz-20kHz,0/-3dB:5Hz-60kHz

Dimensions (W x H x D) 19” x 3.5” x 16” rack mounting to rear support

Net Weight 33 lb. 37 lb. 40 lb. 47 lb.



TOA

900 SERIES

768

Eight Channel Mixer / AmplifiersThe 900 series mixer / amplifiers are designed for

paging and music distribution applications. They

have a customizable architecture that allows you to

choose from a wide array of input modules to suit

your specific system. Three models in the 900 Series;

the A-903MK2 (30w), A-906MK2 (60w) and A-912MK2 (120w), each offer eight input module slots that can accept any of

the many TOA microphone, line or specialty plug-in modules that are available.

◆ The range of plug-in modules not only offer a variety of connectorstypes (XLR, RCA, etc...), they can also provide a number of smartfunctions, including mutes (for setting paging priorities), remotevolume control, as well as signal processing capabilities such as filteringand gating. Each 900 Series amp includes transformer isolated 25v,70v outputs as well as standard 8 ohm (906MK2, 912MK2) and 4 ohm(903MK2) outputs. There is even a direct low-impedance mode ifnon-transformer operation is required. Speaker connections as well asremote mute and volume functions interface via screw terminals.

◆ Onboard protection circuitry from overload, short-circuit, DC offset oroverheating. Their front panel feature input level controls, bypassablemaster bass and treble controls, low cut filter, master volume as wellas normal, peak, power, protect and signal LEDs. Other rear panel I/Oconnectors include and Aux output for accessing an external mixingor recording unit; preamp out / power amp in for inserting an out-board signal processor; as well as bridging I/O for system expansion.Optional accessories, besides input modules, include rack-mount kit(MB-25B), and pack of 4 volume control security covers (YA-920).

Microphone Input ModulesM-01F: Balanced, 200 Ω, Lo/Hi-Cut Filters,Female XLR-F

M-01M: Same as M-O1F with XLR-M

M-01P: Same as M-O1F with Phone Jack

M-01S: Same as M-O1F with Screw Terminals

M-03P: HiZ, Unbalanced, 50k Ω, Lo/Hi-CutFilters, Phone Jack

M-11S: Balanced, 200 Ω, Lo/Hi-Cut Filters,Mute-Receive, Screw Terminals

M-21S: Balanced, 200 Ω, Lo/Hi-Cut Filters,Remote Vol. Control, Screw Terminals

M-41S: Balanced, 200 Ω, Lo/Hi-Cut Filters,Mute-Send, Removable Terminal Block

M-51F: Balanced, 200 Ω, Lo-Cut Filter, VoiceGate, Female XLR

M-51S: Same as M-51F with Screw Terminals

M-61F: Balanced, 200 Ω, Lo/Hi-Cut Filters,Compressor, Female XLR

M-61S: Same as M-61F with Screw Terminals

Special Function I/O

T-01S: Line Output Module, Balanced, 600 Ω,Screw Terminals

T-02S: Line Input Module for Music-on-Hold,Unbalanced, 220k Ω Input, 600 Ω BalancedOutput, Screw Terminals

T-12S: Same as T-02S with Input Mute-Receive

Line Input Modules

Special Function Processors

B-01F: Balanced, 10k Ω transformer, XLR-F

B-01S: Same as B-01F with screw terminals

B-11S: Balanced, 10k Ω transformer,mute-receive, screw terminals

B-21S: Balanced, 10k Ω transformer,remote Volume Control, screw terminals

B-41S: Balanced, 10k Ω transformer,Mute-Send, removable terminal block

L-01F: Line matching Input module, 600 Ωtransformer, balanced, female XLR

L-01S: Same as L-01F with screw terminals

L-11S: Line matching input module, 600 Ωtransformer, balanced, mute-receive, screw ter-minals

L-41S: Line matching input module, 600 Ω trans-former, balanced, mute-send, screw terminals

U-01F: Line input module, unbalanced, 220k Ω,female XLR

U-01P: Same as U-01F with phone jack

U-01R: Same as U-01F with RCA jack

U-01S: Same as U-01F with screw terminals

U-03R: Stereo line input module, Lo/Hi-Cutfilters, stereo summing dual RCA jacks

U-03S: Line input module, Lo/Hi-Cut filters,screw terminals

U-11R: Unbalanced, 220k Ω, mute-receive,RCA jack

U-11S: Same as U-11R with screw terminals

U-12S: Unbalanced, 220k Ω, variablemute-receive depth, screw terminals

U-13R: Same as U-03R with mute-receive

U-13S: Same as U-03S with mute-receive

U-21S: Unbalanced, 220k Ω, remote volumecontrol, screw terminals

U-43R: Same as U-03R with mute-send

U-43S: Same as U-03S with mute-send

U-61S: Line input module, unbalanced,220k Ω, compressor, screw terminals

E-03R: for F-121C/CM speakers, dual RCA

E-04R: for H-1 speakers, dual RCA

E-05R: for H-2/H-2WP speakers, dual RCA

E-07S: Low pass filter output module forFB-100 and HB-1, removable terminal block

S-01S: Signal generator module, 1 kHz sinewave, screw terminals

S-02S: Signal generator module, buzzer/yelp,screw terminals

S-04S: Signal generator module, 8 selectabletones, screw terminals

P2500/P3500/P5000/P7000S


YA M A H A


769

F E AT U R E S

◆ They deliver a robust amount of profes-sional quality power in a wide range ofconfigurations. In a 4-ohm bridgedapplication, the P7000S delivers 3200watts, the P5000S delivers 2600 watts,the P3500S 2000 watts, and the P2500S1300 watts.

◆ Each is equipped with independentsweepable high and low pass filters oneach channel so you can optimize outputfor subwoofer or full range systems toprovide peak audio quality andperformance from any speaker systemyou may be using.

◆ The P2500S and P3500S are respectablylight in weight making transport and setupless strenuous. What's amazing though, isthe comparison in weight per watt whenyou look at the P5000S and P7000S. Theuse of a switching power supply makesthese two models very lightweight whilemaintaining superior audio quality.

◆ To provide the most flexible connectivitypossible, all four are equipped NeutrikSpeakon output jacks, and 1/4” outputjacks for each channel in addition to 5-waybinding post. Channel inputs consist ofboth XLR and 1/4”TRS jacks.

“P” Series II AmpsYamaha’s engineers have designed these P-Series II

power amplifiers as perfect mates to their popular

Club Series speakers. To achieve this, they provided

them with big power output that matches the power

handling capabilities of the speakers. Each amp is also

equipped with the specially designed YS (Yamaha

Speaker) Processing circuit to deliver a signal that is

tuned to the specific response of the Club Series

speakers for superior audio quality and performance.

The amps feature both XLR and1/4” TRS inputs and

Neutrik Speakon, phone plug, and 5-way binding

post outputs to make connections quick and easy.

Other features include Yamaha’s exclusive EEEngine

technology which delivers high performance with

exceptional efficiency, sweepable high and low pass

filters for optimizing output to any loudspeakers, compact and durable 2U chassis, and variable speed cooling fans.

◆ Continuously variable-speed fans mountedinternally on either side of the front paneloffer quiet, efficient cooling.

◆ Their industrial design delivers a refined andimpressive look with deep blue faceplatesbordered in silver trim, handles, and mounts.The chassis is specially designed to provideadded durability and strength.

◆ EEEngine Technology makes more efficientuse of AC power by reducing powerconsumption and heat generation withoutdegrading output power or sound quality.See box on previous page.

◆ Comprehensive protection consists ofpower on/off muting, DC detection, thermalprotection, current limiting, and a protectivecover for the attenuators.

◆ With YS (Yamaha Speaker) Processing, youget direct compatibility with Yamaha’s ClubSeries speaker. This circuit optimizes outputfrom the amps to match the characteristicsof Club Series delivering a signal that isprecisely what the speaker requires. With theYS Processing system, extra-smooth highsand enhanced low frequency from your ClubSeries loudspeaker system is assured.

Models P7000S P5000S P3500S P2500S

1kHz, THD+N=1%

8Ω/Stereo 750W+750W 525W+525W 390W+390W 275W+275W


8Ω/Bridge 2000W 1500W 1180W 780W

20-20kHz, THD+N=0.1%



8Ω/Bridge 1900W 1400W 900W 620W

1KHz, 20mS nonclip


4Ω/Bridge 3200W 2600W 2000W 1300W

Documents

#12C Power Amps FOR PRINT (746-769) - B&H Photo … · · 2007-01-09monitor amp, paging systems, cinema systems, boardroom audio ... Series takes that philosophy and multi-